ExpertPower Heavy Duty Speaker Mic for Kenwood TK-190 TK-280 TK-380 TK-290 TK-480 TK-481 TK-2140 TK-3140 TK-2180 TK-3180 TK-5210 TK-5210G TK-5310 TK-5310G TK-5220 TK-5320 TK-5400 IP55 Water and Dust Resistance Rating for rugged heavy duty usage. 360 Degree Back Clip, with 8 settings for user guides and designed for rugged use Reinforced heavy duty structural polycarbonated housing design for extended life expectancy Large PTT (Push to Talk) featured design for easy access and communication. 3.5 mm audio earphone jack for external ear piece for added privacy feature.